Which gear is correct?

Both are correct, but they are used in different places:

In Xinhua Dictionary, the word "d m ng" has four explanations, one of which is more suitable for us to use is "finger gear, a device mechanically used to adjust speed and control forward and backward", and then the examples are "gear shifting" and "reverse gear". In Chinese dictionary, "gear" refers to the device used by a car to change its speed.

Usually used to refer to forward or reverse, for example, the gear system of this car is very good. Knowing this, I believe everyone can basically see that the gear we usually use in the car should be the word "gear" next to our hands.

Look for the word "when" in Xinhua dictionary. The word "when" here has only one pronunciation. When reading the fourth sound of "dang", it is incorrect to look at the word "dang" from the pronunciation alone.

Usually when reading, it is usually "D M NG" rather than "D dàng". In the notes about "gear", all four explanations are inconsistent with the mechanical explanation. One explanation is that the word "gear" is used to distinguish grades, such as "grade, high grade", so many people use it as "gear" because the ranking on the car gear lever seems to give people a feeling of from low to high, so it is wrong to use "gear" to distinguish.

In terms of gears, each gear has its own matching speed and speed.

1, such as 1, is suitable for climbing at low speed. The timing of shifting from first gear to second gear is 15 to 20km/h. At the same time, the right palm gently holds the gear lever parallel to the left, and then gently pushes the gear lever forward to enter the first gear;

The allowable speed range of 2nd gear and 2nd gear is about 10 km/h to 30 km/h, and the shift timing is 25-30 km/h. The right hand moves the gear lever backward to 2nd gear with wrist force;

3. When the speed reaches the third gear, it becomes 20 to 40 kilometers per hour, and the shift timing is 35 to 40 kilometers per hour. Push the gear lever forward with your right hand to let it return to neutral naturally, and then push it forward straight into third gear;

The allowable speed range of the 4th and 4th gears is 30-50km/h, and the shift timing is 45-50km/h. At this time, the right hand moves the shift lever backwards, and then enters the 4th gear after neutral.